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  1. NetBeans
  2. NETBEANS-2877

Servlet annotations not working

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Details

    • Bug
    • Status: Closed
    • Major
    • Resolution: Resolved
    • None
    • 11.1
    • None
    • None
    • Win10, Apache NetBeans IDE 11.0 (Build incubator-netbeans-release-404-on-20190319), apache-tomee-webprofile-8.0.0-M3 or TomCat 9.0.22, or Glassfish 5.0.1

    Description

      Some kind of nightmare - can not launch primitive servlet on `apache-tomee-webprofile-8.0.0-M3` (the same with TomCat 9.0.22 and Glassfish 5.0.1) and `Apache NetBeans IDE 11.0 (Build incubator-netbeans-release-404-on-20190319)` by using servlet annotations.. Using JDK11. Here is the code:

      package com.xsistema;
      import java.io.IOException;
       import java.io.PrintWriter;
       import javax.servlet.ServletException;
       import javax.servlet.annotation.WebServlet;
       import javax.servlet.http.HttpServlet;
       import javax.servlet.http.HttpServletRequest;
       import javax.servlet.http.HttpServletResponse;
      @WebServlet(name = "NewServlet", urlPatterns =
      {"/meow"}
      )
       public class NewServlet extends HttpServlet {
      /**
      
      Processes requests for both HTTP <code>GET</code> and <code>POST</code> methods.
       * @param request servlet request @param response servlet response @throws ServletException if a servlet-specific error occurs @throws IOException if an I/O error occurs
       */
       protected void processRequest(HttpServletRequest request, HttpServletResponse response)
       throws ServletException, IOException { response.setContentType("text/html;charset=UTF-8"); try ( PrintWriter out = response.getWriter()) \{ /* TODO output your page here. You may use following sample code. */ out.println("<!DOCTYPE html>"); out.println("<html>"); out.println("<head>"); out.println("<title>Servlet NewServlet</title>"); out.println("</head>"); out.println("<body>"); out.println("<h1>Servlet NewServlet at " + request.getContextPath() + "</h1>"); out.println("</body>"); out.println("</html>"); }
      }
      // <editor-fold defaultstate="collapsed" desc="HttpServlet methods. Click on the + sign on the left to edit the code.">
       /**
      
      Handles the HTTP <code>GET</code> method.
       * @param request servlet request @param response servlet response @throws ServletException if a servlet-specific error occurs @throws IOException if an I/O error occurs
       */
       @Override
       protected void doGet(HttpServletRequest request, HttpServletResponse response)
       throws ServletException, IOException { processRequest(request, response); }
      /**
      
      Handles the HTTP <code>POST</code> method.
       * @param request servlet request @param response servlet response @throws ServletException if a servlet-specific error occurs @throws IOException if an I/O error occurs
       */
       @Override
       protected void doPost(HttpServletRequest request, HttpServletResponse response)
       throws ServletException, IOException { processRequest(request, response); }
      /**
      
      Returns a short description of the servlet.
       * @return a String containing servlet description
       */
       @Override
       public String getServletInfo() { return "Short description"; }// </editor-fold>
      }
      

      And `web.xml` file:

      <?xml version="1.0" encoding="UTF-8"?>
      <web-app 
       xmlns="http://xmlns.jcp.org/xml/ns/javaee"
       xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 
       xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/web-app_3_1.xsd"
       version="3.1">
      </web-app>
      

      The error:

      Type Exception Report
      Message Error instantiating servlet class [com.xsistema.NewServlet]
      Description The server encountered an unexpected condition that prevented it from fulfilling the request.
      Exception
      javax.servlet.ServletException: Error instantiating servlet class [com.xsistema.NewServlet]
       org.apache.tomee.catalina.OpenEJBValve.invoke(OpenEJBValve.java:45)
       org.apache.tomee.catalina.OpenEJBValve.invoke(OpenEJBValve.java:45)
       org.apache.tomee.catalina.OpenEJBValve.invoke(OpenEJBValve.java:45)
       org.apache.tomee.catalina.OpenEJBValve.invoke(OpenEJBValve.java:45)
       org.apache.tomee.catalina.OpenEJBValve.invoke(OpenEJBValve.java:45)
       org.apache.tomee.catalina.OpenEJBValve.invoke(OpenEJBValve.java:45)
       org.apache.tomee.catalina.OpenEJBValve.invoke(OpenEJBValve.java:45)
       org.apache.tomee.catalina.OpenEJBValve.invoke(OpenEJBValve.java:45)
       org.apache.tomee.catalina.OpenEJBValve.invoke(OpenEJBValve.java:45)
       org.apache.tomee.catalina.OpenEJBValve.invoke(OpenEJBValve.java:45)
       org.apache.tomee.catalina.OpenEJBValve.invoke(OpenEJBValve.java:45)
       org.apache.tomee.catalina.OpenEJBValve.invoke(OpenEJBValve.java:45)
       org.apache.tomee.catalina.OpenEJBValve.invoke(OpenEJBValve.java:45)
       org.apache.tomee.catalina.OpenEJBValve.invoke(OpenEJBValve.java:45)
       org.apache.tomee.catalina.OpenEJBValve.invoke(OpenEJBValve.java:45)
       org.apache.tomee.catalina.OpenEJBValve.invoke(OpenEJBValve.java:45)
       org.apache.tomee.catalina.OpenEJBValve.invoke(OpenEJBValve.java:45)
       org.apache.tomee.catalina.OpenEJBValve.invoke(OpenEJBValve.java:45)
       org.apache.tomee.catalina.OpenEJBValve.invoke(OpenEJBValve.java:45)
       org.apache.tomee.catalina.OpenEJBValve.invoke(OpenEJBValve.java:45)
       org.apache.tomee.catalina.OpenEJBValve.invoke(OpenEJBValve.java:45)
       org.apache.tomee.catalina.OpenEJBValve.invoke(OpenEJBValve.java:45)
       org.apache.tomee.catalina.OpenEJBValve.invoke(OpenEJBValve.java:45)
       org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:490)
       org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:92)
       org.apache.tomee.catalina.OpenEJBSecurityListener$RequestCapturer.invoke(OpenEJBSecurityListener.java:97)
       org.apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAccessLogValve.java:678)
       org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:343)
       org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:408)
       org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:66)
       org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:836)
       org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1839)
       org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49)
       java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128)
       java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628)
       org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
       java.base/java.lang.Thread.run(Thread.java:834)
      Root Cause
      java.lang.RuntimeException: 
       com.xsistema.NewServlet.<init>(NewServlet.java:1)
       java.base/jdk.internal.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
       java.base/jdk.internal.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)
       java.base/jdk.internal.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
       java.base/java.lang.reflect.Constructor.newInstance(Constructor.java:490)
       java.base/java.lang.Class.newInstance(Class.java:584)
       org.apache.openejb.core.WebContext.newWeakableInstance(WebContext.java:147)
       org.apache.openejb.core.WebContext.newInstance(WebContext.java:181)
       org.apache.tomee.catalina.JavaeeInstanceManager.newInstance(JavaeeInstanceManager.java:78)
       org.apache.tomee.catalina.JavaeeInstanceManager.newInstance(JavaeeInstanceManager.java:124)
       org.apache.tomee.catalina.JavaeeInstanceManager.newInstance(JavaeeInstanceManager.java:119)
       org.apache.tomee.catalina.OpenEJBValve.invoke(OpenEJBValve.java:45)
       org.apache.tomee.catalina.OpenEJBValve.invoke(OpenEJBValve.java:45)
       org.apache.tomee.catalina.OpenEJBValve.invoke(OpenEJBValve.java:45)
       org.apache.tomee.catalina.OpenEJBValve.invoke(OpenEJBValve.java:45)
       org.apache.tomee.catalina.OpenEJBValve.invoke(OpenEJBValve.java:45)
       org.apache.tomee.catalina.OpenEJBValve.invoke(OpenEJBValve.java:45)
       org.apache.tomee.catalina.OpenEJBValve.invoke(OpenEJBValve.java:45)
       org.apache.tomee.catalina.OpenEJBValve.invoke(OpenEJBValve.java:45)
       org.apache.tomee.catalina.OpenEJBValve.invoke(OpenEJBValve.java:45)
       org.apache.tomee.catalina.OpenEJBValve.invoke(OpenEJBValve.java:45)
       org.apache.tomee.catalina.OpenEJBValve.invoke(OpenEJBValve.java:45)
       org.apache.tomee.catalina.OpenEJBValve.invoke(OpenEJBValve.java:45)
       org.apache.tomee.catalina.OpenEJBValve.invoke(OpenEJBValve.java:45)
       org.apache.tomee.catalina.OpenEJBValve.invoke(OpenEJBValve.java:45)
       org.apache.tomee.catalina.OpenEJBValve.invoke(OpenEJBValve.java:45)
       org.apache.tomee.catalina.OpenEJBValve.invoke(OpenEJBValve.java:45)
       org.apache.tomee.catalina.OpenEJBValve.invoke(OpenEJBValve.java:45)
       org.apache.tomee.catalina.OpenEJBValve.invoke(OpenEJBValve.java:45)
       org.apache.tomee.catalina.OpenEJBValve.invoke(OpenEJBValve.java:45)
       org.apache.tomee.catalina.OpenEJBValve.invoke(OpenEJBValve.java:45)
       org.apache.tomee.catalina.OpenEJBValve.invoke(OpenEJBValve.java:45)
       org.apache.tomee.catalina.OpenEJBValve.invoke(OpenEJBValve.java:45)
       org.apache.tomee.catalina.OpenEJBValve.invoke(OpenEJBValve.java:45)
       org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:490)
       org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:92)
       org.apache.tomee.catalina.OpenEJBSecurityListener$RequestCapturer.invoke(OpenEJBSecurityListener.java:97)
       org.apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAccessLogValve.java:678)
       org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:343)
       org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:408)
       org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:66)
       org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:836)
       org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1839)
       org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49)
       java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128)
       java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628)
       org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
       java.base/java.lang.Thread.run(Thread.java:834)
      

      The goal is to declare servlets only by annotations, like:

      @WebServlet(name = "NewServlet", urlPatterns = {"/meow"})

      Tested on NetBeans 8.2 with JDK1.8u221 - all works as expected. I suspect the problem is in Apache NetBeans 11, even if project JDK is set to 8 (also source/binary format).

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            Unassigned Unassigned
            j-f-k Ernestas Gruodis
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            Dates

              Created:
              Updated:
              Resolved: